Volley Square Volley Square is so much fun for all ages. What is it? Well, it's a combination of Volley Ball and Four Square. But Volley Square is easier to say. Fast set up, can be played inside and out. Great fun for youth groups, schools, family reunions, volleyball teams, corporate events and more. We provide the connectors and all the instructions and game ideas. You can purchase the PVC pipe* at your closest box store. And a simple ball from the bin at your local discount store.